CN204347161U - A kind of tool of the short-circuit protection function for detecting mobile terminal - Google Patents
A kind of tool of the short-circuit protection function for detecting mobile terminal Download PDFInfo
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- CN204347161U CN204347161U CN201520012544.XU CN201520012544U CN204347161U CN 204347161 U CN204347161 U CN 204347161U CN 201520012544 U CN201520012544 U CN 201520012544U CN 204347161 U CN204347161 U CN 204347161U
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Abstract
The utility model belongs to test fixture technical field; in particular to a kind of tool of the short-circuit protection function for detecting mobile terminal; comprise tool main body and be arranged at USB interface in described tool main body, the first through hole, the second through hole and for being inserted in the connection plug-in unit in described first through hole or described second through hole; described first through hole is connected with described USB interface with positive voltage data line respectively by negative voltage data line, and described second through hole is connected with described USB interface with ground wire respectively by positive source line.Relative to prior art; the utility model structure is simple, easily realizes, and can realize USB data line short circuit and the USB power source circuit of mobile terminal well; thus mobile terminal can be detected whether there is short-circuit protection function, be burned to prevent mobile terminal USB function or mainboard.
Description
Technical field
The utility model belongs to method of testing and test fixture technical field, particularly a kind of tool of the short-circuit protection function for detecting mobile terminal.
Background technology
User is when routine use mobile terminal; there is the problem that USB can not charge, computer can not identify USB sometimes; these problems may cause due to short circuit; so before mobile terminal is introduced to the market; need to detect the short-circuit protection function of mobile terminal, be burned to prevent USB function of mobile phone or mainboard.
Four lines are had: positive source line (VCC), negative voltage data line (Data-), positive voltage data line (Data+) and ground wire (GND) in the USB line of mobile phone.Therefore, the utility model aims to provide a kind of tool of the short-circuit protection function for detecting mobile terminal, and after it can detect the USB line short circuit of mobile terminal, whether mobile terminal has automatic protection functions, is burned to prevent USB function of mobile phone or mainboard.
Utility model content
One of the purpose of this utility model is: for the deficiencies in the prior art; and a kind of tool of the short-circuit protection function for detecting mobile terminal is provided; after it can detect the USB line short circuit of mobile terminal, whether mobile terminal has automatic protection functions, is burned to prevent USB function of mobile phone or mainboard.
To achieve these goals, the utility model adopts following technical scheme:
A kind of tool of the short-circuit protection function for detecting mobile terminal; comprise tool main body and be arranged at USB interface in described tool main body, the first through hole, the second through hole and for being inserted in the connection plug-in unit in described first through hole or described second through hole; described first through hole is connected with described USB interface with positive voltage data line respectively by negative voltage data line, and described second through hole is connected with described USB interface with ground wire respectively by positive source line.
Relative to prior art, the utility model is by arranging tool main body and arranging USB interface, the first through hole, the second through hole and be connected plug-in unit in tool main body, and the first through hole is connected with USB interface with positive voltage data line by negative voltage data line, the second through hole is connected with USB interface with ground wire by positive source line.When connection plug-in unit is inserted the first through hole; and when mobile terminal is connected with USB interface; just can make the USB data line short circuit of mobile terminal, after now the USB recognition function of testing mobile terminal and charge function can detect the USB data line short circuit of mobile terminal again, whether it has automatic protection functions.When connection plug-in unit is inserted the second through hole; and when mobile terminal is connected with USB interface; just can make the power lead short circuit of mobile terminal, now the USB recognition function of testing mobile terminal and charge function can detect after the USB power source line short circuit of mobile terminal whether it has automatic protection functions again.
The utility model structure is simple; easy realization; and USB data line short circuit and the USB power source circuit of mobile terminal can be realized well, thus mobile terminal can be detected whether there is short-circuit protection function, be burned to prevent mobile terminal USB function or mainboard.
Improve for the one detecting the tool of the short-circuit protection function of mobile terminal as the utility model, described positive voltage data line is connected with resistance.
Improve for the one detecting the tool of the short-circuit protection function of mobile terminal as the utility model, described ground wire is connected with resistance.
Improve for the one detecting the tool of the short-circuit protection function of mobile terminal as the utility model, described connection plug-in unit is set to the plug broken.
Improve for the one detecting the tool of the short-circuit protection function of mobile terminal as the utility model; described first through hole is set to several; each described first through hole is all connected with described USB interface with a described positive voltage data line by a described negative voltage data line, and the resistance of the resistance that positive voltage data line described in every root connects is all different.
Improve for the one detecting the tool of the short-circuit protection function of mobile terminal as the utility model; described second through hole is set to several; each described second through hole is all connected with described USB interface with a described ground wire by a described positive source line, and the resistance of the resistance that ground wire described in every root connects is all different.
Improve for the one detecting the tool of the short-circuit protection function of mobile terminal as the utility model, the shape of described first through hole and described second through hole is circle or ellipse.
Improve for the one detecting the tool of the short-circuit protection function of mobile terminal as the utility model; described first through hole is set to 5, and the resistance of the resistance that 5 described positive voltage data lines connect is 0 ohm, 1 ohm, 10 ohm, 100 ohm and 1000 ohm respectively.
Improve for the one detecting the tool of the short-circuit protection function of mobile terminal as the utility model; described second through hole is set to 5, and the resistance of the resistance that 5 described ground wires connect is 0 ohm, 1 ohm, 10 ohm, 100 ohm and 1000 ohm respectively.
Another object of the present utility model is to provide a kind of method utilizing above-mentioned tool to detect the short-circuit protection function of mobile terminal, at least comprises the following steps:
Whether A, the USB recognition function checking mobile terminal and charge function be normal, if normally, then carries out following steps;
B, mobile terminal is connected one end of USB line by its USB port, the other end of USB line connects the USB interface of described tool;
C, connection plug-in unit is inserted in the first through hole, forms the short circuit current comprising negative voltage data line and positive voltage data line, after continuing 1min ~ 10min, disconnect short circuit current, again check the USB recognition function of mobile terminal and charge function whether normal;
D, connection plug-in unit is inserted in the second through hole, forms the short circuit current comprising positive source line and ground wire, after continuing 1min ~ 10min, disconnect short circuit current, again check the USB recognition function of mobile terminal and charge function whether normal.
Wherein, step B and step C in no particular order, can the USB data line short circuit of first testing mobile terminal time short-circuit protection function, also can the USB power source line short circuit of first testing mobile terminal time short-circuit protection function.
For the tool having several the first through holes 3 and several the second through holes 4, first can carry out step B, connect plug-in unit and often insert first through hole 3, just carry out D step, until being completed of described first through hole 3, its flow process can be expressed as B-D-B-D-B-D-B-D-B-D-C-D-C-D-C-D-C-D-C-D; Then carry out step C, connect plug-in unit and often insert second through hole 4, just carry out D step, until being completed of described second through hole 4.Or, also first step B can be carried out, connect plug-in unit and insert first through hole 3, just carry out D step, and then carry out step C, connect plug-in unit and insert second through hole 4, just carry out D step, that is, step B and step C are interlocked and are carried out, and its flow process can be expressed as B-D-C-D-B-D-C-D-B-D-C-D-B-D-C-D-B-D-C-D.Certainly, also first step C can be carried out, connect plug-in unit and insert second through hole 4, just carry out D step, and then carry out step B, connect plug-in unit and insert first through hole 4, just carry out D step, step B and step C are also staggered carries out, and its flow process can be expressed as C-D-B-D-C-D-B-D-C-D-B-D-C-D-B-D-C-D-B-D.
Certainly, step B and step C also can not be interlocked and be carried out, but upset and carry out, and the flow process after upsetting is as C-D-C-D-B-D-B-D-C-D-B-D-B-D-C-D-C-D-B-D etc.
Relative to prior art; the utility model step is simple; before testing, the function of the USB of mobile terminal is checked; then USB data line short circuit and the USB power source line of mobile terminal is made; and then check the function of USB of mobile terminal; if the USB function of mobile terminal is abnormal when again checking; its short-circuit protection function is more weak in other words then to show do not have short-circuit protection function by this mobile terminal; judge whether this mobile terminal has short-circuit protection function with this; thinking is novel; reliable results, is worthy to be popularized.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the internal wiring figure of the utility model embodiment 1.
Wherein, 1-tool main body, 2-USB interface, 3-first through hole, 4-second through hole, 5-connects plug-in unit, 6-negative voltage data line, 7-positive voltage data line, 8-electrode line, 9-ground wire, 10-resistance.
Embodiment
Below in conjunction with embodiment, the utility model and beneficial effect thereof are described in further detail, but embodiment of the present utility model is not limited to this.
Embodiment 1
As illustrated in fig. 1 and 2; the tool of a kind of short-circuit protection function for detecting mobile terminal that the present embodiment provides; comprise tool main body 1 with USB interface 2, first through hole 3, second through hole 4 be arranged in tool main body 1 with for being inserted in the connection plug-in unit 5 in the first through hole 3 or the second through hole 4; first through hole 3 is connected with USB interface 2 with positive voltage data line 7 respectively by negative voltage data line 6, and the second through hole 4 is connected with USB interface 2 with ground wire 9 respectively by positive source line 8.When connection plug-in unit 5 is inserted in the first through hole 3, be equivalent to negative voltage data line 6 directly contact with positive voltage data line 7, thus realize the short circuit of negative voltage data line 6 and positive voltage data line 7, and then the short circuit of negative voltage data line 6 and positive voltage data line 7 in the USB line realizing mobile terminal; And when being inserted in the second through hole 4 by connection plug-in unit 5, being equivalent to electrode line 8 with ground wire 9 directly contacts, thus realizes the short circuit of electrode line 8 and ground wire 9, and then the short circuit of electrode line 8 and ground wire 9 in the USB line realizing mobile terminal.That is, the first through hole 3 is through holes of short circuit between simulation test negative voltage data line 6 and positive voltage data line 7, and the second through hole 4 is through holes of short circuit between simulation test positive source and ground.The effect of USB interface 2 connects mobile terminal.
Positive voltage data line 7 is connected with resistance 10, ground wire 9 is connected with resistance 10.The setting of resistance 10 can be implemented in the test of the mobile terminal short-circuit protection function under different resistance.
Connect the plug that plug-in unit 5 is set to break, it is similar to TV line terminals, it can by negative voltage data line 6 and positive voltage data line 7 conducting, or by electrode line 8 and ground wire 9 conducting, its effect forms simulation short circuit current, connects plug-in unit 5 and be inserted in the short circuit current just forming corresponding resistance in which through hole.
First through hole 3 is set to several; each first through hole 3 is all connected with USB interface 2 with a positive voltage data line 7 by a negative voltage data line 6; the resistance of the resistance 10 that every root positive voltage data line 7 connects is all different, thus can be implemented in the test of the mobile terminal short-circuit protection function under different resistance.
Second through hole 4 is set to several; each second through hole 4 is all connected with USB interface 2 with a ground wire 9 by a positive source line 8; the resistance of the resistance 10 that every root ground wire 9 connects is all different, can be implemented in the test of the mobile terminal short-circuit protection function under different resistance.
The shape of the first through hole 3 and the second through hole 4 is circle or ellipse, is convenient to the plug connecting plug-in unit 5.
In the present embodiment, the first through hole 3 is set to 5, and the resistance of the resistance 10 that 5 positive voltage data lines 7 connect is 0 ohm, 1 ohm, 10 ohm, 100 ohm and 1000 ohm respectively, and the resistance of resistance 10 from left to right increases gradually, is convenient to test.
In the present embodiment, the second through hole 4 is set to 5, and the resistance of the resistance 10 that 5 ground wires 9 connect is 0 ohm, 1 ohm, 10 ohm, 100 ohm and 1000 ohm respectively, and the resistance of resistance 10 from left to right increases gradually, is convenient to test.
In a word, the utility model is by arranging tool main body 1 and arranging USB interface 2, first through hole 3, second through hole 4 and be connected plug-in unit 5 in tool main body 1, and the first through hole 3 is connected with USB interface 2 with positive voltage data line 7 by negative voltage data line 6, the second through hole 4 is connected with USB interface 2 with ground wire 9 by positive source line 8.When connection plug-in unit 5 is inserted the first through hole 3; and when mobile terminal is connected with USB interface 2; just can make the USB data line short circuit of mobile terminal, after now the USB recognition function of testing mobile terminal and charge function can detect the USB data line short circuit of mobile terminal again, whether it has automatic protection functions.When connection plug-in unit 5 is inserted the second through hole 4; and when mobile terminal is connected with USB interface 2; just can make the power lead short circuit of mobile terminal, now the USB recognition function of testing mobile terminal and charge function can detect after the USB power source line short circuit of mobile terminal whether it has automatic protection functions again.
The utility model structure is simple; easy realization; and USB data line short circuit and the USB power source circuit of mobile terminal can be realized well, thus mobile terminal can be detected whether there is short-circuit protection function, be burned to prevent mobile terminal USB function or mainboard.
Embodiment 2
Present embodiments provide a kind of method utilizing the tool of embodiment 1 to detect the short-circuit protection function of mobile terminal, comprise the following steps:
Whether A, the USB recognition function checking mobile terminal and charge function be normal, if normally, then carries out following steps, if abnormal, then without the need to carrying out following steps again;
B, mobile terminal is connected one end of USB line by its USB port, the other end of USB line connects the USB interface 2 of the tool that embodiment 1 provides, and realizes the connection of the tool of mobile terminal and embodiment 1;
C, connection plug-in unit 5 is inserted from left to right in first the first through hole 3, form the short circuit current comprising negative voltage data line 6 and positive voltage data line 7, non-contact resistance (resistance is 0 in other words) on the positive voltage data line 7 be connected with this first through hole 3, after continuing 3min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in second the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 1 ohm, after continuing 4min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 3rd the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 10 ohm, after continuing 5min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 4th the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 100 ohm, after continuing 6min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 5th the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 1000 ohm, after continuing 7min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then carry out follow-up test,
D, connection plug-in unit 5 is inserted from left to right in first the second through hole 4, form the short circuit current comprising positive source line 8 and ground wire 9, after continuing 2min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in second the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 1 ohm, after continuing 4min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 3rd the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 10 ohm, after continuing 6min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 4th the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 100 ohm, after continuing 8min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 5th the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 1000 ohm, after continuing 3min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then show that the short-circuit protection function of this mobile terminal is good.
Embodiment 3
Present embodiments provide a kind of method utilizing the tool of embodiment 1 to detect the short-circuit protection function of mobile terminal, comprise the following steps:
Whether A, the USB recognition function checking mobile terminal and charge function be normal, if normally, then carries out following steps, if abnormal, then without the need to carrying out following steps again;
B, mobile terminal is connected one end of USB line by its USB port, the other end of USB line connects the USB interface 2 of the tool that embodiment 1 provides, and realizes the connection of the tool of mobile terminal and embodiment 1;
C, connection plug-in unit 5 is inserted from left to right in first the second through hole 4, form the short circuit current comprising positive source line 8 and ground wire 9, after continuing 2min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in second the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 1 ohm, after continuing 4min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 3rd the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 10 ohm, after continuing 6min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 4th the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 100 ohm, after continuing 8min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 5th the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 1000 ohm, after continuing 3min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then carry out follow-up test,
D, connection plug-in unit 5 is inserted from left to right in first the first through hole 3, form the short circuit current comprising negative voltage data line 6 and positive voltage data line 7, non-contact resistance (resistance is 0 in other words) on the positive voltage data line 7 be connected with this first through hole 3, after continuing 3min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in second the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 1 ohm, after continuing 3min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 3rd the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 10 ohm, after continuing 3min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 4th the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 100 ohm, after continuing 6min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 5th the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 1000 ohm, after continuing 3min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then carry out follow-up test, then show that the short-circuit protection function of this mobile terminal is good.
Embodiment 4
Present embodiments provide a kind of method utilizing the tool of embodiment 1 to detect the short-circuit protection function of mobile terminal, comprise the following steps:
Whether A, the USB recognition function checking mobile terminal and charge function be normal, if normally, then carries out following steps, if abnormal, then without the need to carrying out following steps again;
B, mobile terminal is connected one end of USB line by its USB port, the other end of USB line connects the USB interface 2 of the tool that embodiment 1 provides, and realizes the connection of the tool of mobile terminal and embodiment 1;
C, connection plug-in unit 5 is inserted from left to right in first the first through hole 3, form the short circuit current comprising negative voltage data line 6 and positive voltage data line 7, non-contact resistance (resistance is 0 in other words) on the positive voltage data line 7 be connected with this first through hole 3, after continuing 3min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, connection plug-in unit 5 is inserted from left to right in first the second through hole 4, form the short circuit current comprising positive source line 8 and ground wire 9, after continuing 2min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in second the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 1 ohm, after continuing 10min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in second the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 1 ohm, after continuing 4min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 3rd the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 10 ohm, after continuing 5min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 3rd the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 10 ohm, after continuing 9min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 4th the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 100 ohm, after continuing 1min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 4th the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 100 ohm, after continuing 8min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 5th the first through hole 3, the positive voltage data line 7 be connected with this first through hole 3 connects the resistance 10 that resistance is 1000 ohm, after continuing 7min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then connection plug-in unit 5 is inserted from left to right in the 5th the second through hole 4, the ground wire 9 be connected with this second through hole 4 connects the resistance 10 that resistance is 1000 ohm, after continuing 10min, disconnect short circuit current, again check that whether USB recognition function and the charge function of mobile terminal be normal, if abnormal, then do not carry out follow-up test, if normal, then show that the short-circuit protection function of this mobile terminal is good.
The announcement of book and instruction according to the above description, the utility model those skilled in the art can also change above-mentioned embodiment and revise.Therefore, the utility model is not limited to embodiment disclosed and described above, also should fall in the protection domain of claim of the present utility model modifications and changes more of the present utility model.In addition, although employ some specific terms in this instructions, these terms just for convenience of description, do not form any restriction to the utility model.
Claims (9)
1. one kind for detecting the tool of the short-circuit protection function of mobile terminal; it is characterized in that: comprise tool main body and be arranged at USB interface in described tool main body, the first through hole, the second through hole and for being inserted in the connection plug-in unit in described first through hole or described second through hole; described first through hole is connected with described USB interface with positive voltage data line respectively by negative voltage data line, and described second through hole is connected with described USB interface with ground wire respectively by positive source line.
2. the tool of the short-circuit protection function for detecting mobile terminal according to claim 1, is characterized in that: described positive voltage data line is connected with resistance.
3. the tool of the short-circuit protection function for detecting mobile terminal according to claim 1, is characterized in that: described ground wire is connected with resistance.
4. the tool of the short-circuit protection function for detecting mobile terminal according to claim 1, is characterized in that: described connection plug-in unit is set to the plug broken.
5. the tool of the short-circuit protection function for detecting mobile terminal according to claim 2; it is characterized in that: described first through hole is set to several; each described first through hole is all connected with described USB interface with a described positive voltage data line by a described negative voltage data line, and the resistance of the resistance that positive voltage data line described in every root connects is all different.
6. the tool of the short-circuit protection function for detecting mobile terminal according to claim 3; it is characterized in that: described second through hole is set to several; each described second through hole is all connected with described USB interface with a described ground wire by a described positive source line, and the resistance of the resistance that ground wire described in every root connects is all different.
7. the tool of the short-circuit protection function for detecting mobile terminal according to claim 1, is characterized in that: the shape of described first through hole and described second through hole is circle or ellipse.
8. the tool of the short-circuit protection function for detecting mobile terminal according to claim 5; it is characterized in that: described first through hole is set to 5, the resistance of the resistance that 5 described positive voltage data lines connect is 0 ohm, 1 ohm, 10 ohm, 100 ohm and 1000 ohm respectively.
9. the tool of the short-circuit protection function for detecting mobile terminal according to claim 6; it is characterized in that: described second through hole is set to 5, the resistance of the resistance that 5 described ground wires connect is 0 ohm, 1 ohm, 10 ohm, 100 ohm and 1000 ohm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520012544.XU CN204347161U (en) | 2015-01-06 | 2015-01-06 | A kind of tool of the short-circuit protection function for detecting mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520012544.XU CN204347161U (en) | 2015-01-06 | 2015-01-06 | A kind of tool of the short-circuit protection function for detecting mobile terminal |
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| Publication Number | Publication Date |
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| CN204347161U true CN204347161U (en) | 2015-05-20 |
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| CN201520012544.XU Active CN204347161U (en) | 2015-01-06 | 2015-01-06 | A kind of tool of the short-circuit protection function for detecting mobile terminal |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502773A (en) * | 2015-01-06 | 2015-04-08 | 东莞华贝电子科技有限公司 | Jig and method for detecting short circuit protection function of mobile terminal |
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2015
- 2015-01-06 CN CN201520012544.XU patent/CN204347161U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104502773A (en) * | 2015-01-06 | 2015-04-08 | 东莞华贝电子科技有限公司 | Jig and method for detecting short circuit protection function of mobile terminal |
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